<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>06_for_of循环</title>
</head>
<body>

<!--
for(let value of target){}循环遍历
  1. 遍历数组
  2. 遍历Set
  3. 遍历Map
  4. 遍历字符串
  5. 遍历伪数组
-->

<button>按钮1</button>
<button>按钮2</button>
<button>按钮3</button>

<script type="text/javascript">
    let arr = [1, 2, 3, 4, 5];
    for (let num of arr) {
        console.log(num);
    }
    let set = new Set([1, 2, 3, 4, 5]);
    for (let num of set) {
        console.log(num);
    }
    let str = 'abcdefg';
    for (let num of str) {
        console.log(num);
    }
    let btns = document.getElementsByTagName('button');
    for (let btn of btns) {
        console.log(btn.innerHTML);
    }


</script>
</body>

</html>